Manifolding attachment for typewriters



M. L. co ssm.

MANIFOLDING ATTACHMENT FOR TYPEWRHEBS. APPLICATION man JUNE 13, 192:.

. Patnted Feb.28,1922.

INVENTOR Wa -d Z M BY ATTORNEYS HALGGECEQ L. C0$SITT, 0F ALAMEDA,CALIFQRNIA, ASSEGNOR T0 HAIHE'SLD EHEES$IONS CQRPORAI'ION. OF CARSONCITY. NEVADA, A CQEIPQRATIGN MAEHQLDIN i1- ATTACHMENT F011,

T0 at? whom it may concern: 1

Be it known that I, MALCOLM L. (lossrrr, e citizen. of the UnitedStetes, residing at Alameda, in the county of Alameda omi State ofCalifornia, have invented certain new and. usefui improvements inManifolding Attachments forTypeWriters, of which the following is o.specification.

My invention relates to that class of at tacliments for typewriters andother typing machines such, for exampie, as calculating machines and.the like, in which a manifoiding ribbon is so associated with themachine as to be readily moved into and out of func-- tional position.

The oloject of my invention is to provicle e manifoldiing attachment ofthis class, simple in construction, e'fiective in operation, and whichcan be readily appliedto the machine without appreciable changes oralterations therein.

To this end. my invention consists in the novel manifolding attachmentwhich I shell now fully describe by reference to the accompanyingdrawings, in Which- Fig. l is s top plan view, broken, showing theeppiicstion of my stteciiment to the piston-carriage of a me. is, themanifolding ribbons being shown in fnnetionnl position.

Fig, S2 s sectional encl view on the line s eer Fig. l, the clottedlines showing the thrown-beck position of the attachment.

Fig. 3 is s section on the line 3-3 oi Fig.

Fig. 4 is a. broken front eievetionloolring from the line fr-4 of 52.

For the sslre of e clear unciierstsniiingz, ll slieli (iQSCEiiHEattachment and then describe its application to s machine and itsoperation in connection therewith.

' There 1 is s. stenderci having: a. foot 1. ere two of thesestnnrlsrris, and they are con nested by a. rod 3 is on :ircuete guiri'emember. There are two of these, one being; pivotelly mounted orjournsied at its portion, upon the rod 2, near one enoi tliereo'f, asshown st 2", the other being correspomiing'ly j'onrneieri on the rodnear its other end.

Eeclo. guide member is formed with e plurelity of separate, parallel.iengthwise grooves 3. in each groove is slidsloly fittest enci guicieclon srcuete ribbon-cerrying slide Specification of Letters retest.

an extension 5 the frame of tile platen-esrrisgge; i

Patented Feb. es. i922,

1%2L' fierial No. iffififig.

4, each having a handle 5. The handles are 85 arranged to convenientlyoverlap, as shown in Figs. 1 and 4s, and each isprovided with edeptecito rietscnelaiy receive a clip 8 fitted to the end of the strin, sectionor length of nianifolo 'inrg ribbon i. The other end or escli ribbon issimilariy detach-ably connected with tire lisnelie extension of thecorresponding; siicie in the other slotted guide member, so that theribbons ex tend, as seen in Fig. i in parallel relation, the full lengthbetween the oorresponciing sliiies at each end of the novice and areadapted, for independent, even and uniform movement in an sreuete path.

To secure this uniform movement, each slide 4 has its upper or convexedge formed or provided with o toothed rock 5%.

9 is a tubular casing fixed in bracket more" bers 9 secured to orformeri with the rear portions of the arcuete grooved guide mean 2% hers3.

Within this easing 9 is carried series oi concentrically nested,independentiy rots table shafts 10, each carrying at pinion ll, withwhich the responding ribbon-connector 4 engage. Figs. 1 one}. 3.

The: application of my etteeiirnent typing rnsoliine Wili now he inFigs. fl and 52-12 inieetes s platen; 1% the platensiiai t; i5 e oturning the piston. 17, in Fig. l,

usual main ink o; ribbon the niacin e, end 18 is the in pointer. 1%"? isthe in W v1 giiicie apron ioecir oi the platen. The nsnoi top members ofthe pietei'nsiizift beurii are removed by taking out its screws, i.place oi these top members, he feet 1" of the eiong ens? shove platen,down to their functional position in the line of type-impact, and backagain. As their path of movement is substantially or approximatelyconcentric with the curvature of the platen, due to the arcuate guide,members in which their carrying slides are mounted, the wholeattachment may be applied in clom relation to the platen, therebysecuring compactness, even in the non-functional position of theribbons, and also conducing to simplicity of construction, in that moreor less complex provision'need not be made for an eccentric or distortedpath, to secure the proper or accurate position of'the manifoldingribbons with relation to the main ribbon and the index pointer, whensaid manifolding ribbons reach their functional location in the line oftype-impact. When, however, it is necessary to change the ribbons, theirdetachable clips 6 can be conveniently reached b throwing up the guidemembers 3 about t eir pivotal connections on the rod 2, therebyelevating the ribbons a distance above the platen, as shown by thedotted lines in Fig.

In a co-pending application, Serial Numher 477,062, filed June 13, 1921,I show an amachment of the present type, in which fill \ inclining thegrooves 3 the arcuate ribbon-carrying slides are fitted in arouatehousing members, in which they lie upon and directly in contact witheach other, and serve to guide and direct each other in their travel, Ifind that it is better as furnishing greater accuracy, and giving lessfriction and possible interference, to slidably fit each slide in itsown separate seat, and, for this reason, l show in the present case, asespecially adapted for a pluralit of slides and ribbons, the arcuate momers '3 es positively grooved to form a plurality of separate housingseats irncach ei which is fitted and guided an arcuate ribbonwarryingslide, so that each pair of slides, carrying its own ribbon, may beoperated. independently of any other pair, without interference orwithout any tendeney to disturb the others or move them by frictions-lccntact. This form of the arcuate guide members also enables me to"provide, in simple manner, for the automat-i0 tensioning cf the ribbonsas they approach rcachj their functional position in the line oftype-impact. In the present is accomplished by slightly in the arcuateguide members '3 at an angle to their sides, as sheave in 1, theinclination being outwardly from their upper to their lower ends, ineach member, so that said grooves diverge in one member relatively tothose in the other member. it will thus be seen that as a pair of slidesdown in the grooves, the members off the pair movain slightly divergentpaths, and are thus adapted, as

they approach the lower limit of their travel, to place and hold theribbon they carry under tension in the line of type im pact.

The operation of the attachment may now,

be briefly described. Ordinarily, when no duplicate copy is required,all the manifolding ribbons lie above and close to the platen and areout of the way. If one duplicate is to be made, one of the handles 5 is.grasped and pulled down, thereby carrying one of the ribbons down with auniform movement at each end, said ribron following an arcuate path infront of the platen and passing between the paper sheets in the machine,until it reaches its grooves; means for securing said guide members tothe platenarriage of the machine at each end of the platen; a pluralityof arcuate slides fitted and guided, one in each groove of said guidemembers; means connecting corresponding slides at each end in pairs,whereby each pair moves in unison: and a manifolding; ribbon carried. byand between the slides of each pair and adapted by their movement totravel in an arcuate path about the tional position in the line oftypedmpact.

2. A manifolding attachment for type writers and the like comprising apair of arcuate, spaced, guide members, formed ith a plurality oiparallel longitudinal U15 grooves at an angle to the sides of saidguides, the grooves in one guide diverging with relation to those in theother from their upper to their lower ends; means for securing saidguide members to the platencarriage of the machine at each end of theplaten; a plurality of arcuate slides fitted and guided, one in eachgroove of said guide members; means connecting corresponding slides ateach end in pairs, whereby cach llfi pair moves in unison; and amanifolding ribbon carried by and between the slides of i each pair andadapted by their movement to travel in an arcuatc, relatively angularpath about the platen, from and to functional position under tension inthe line of type impact.

In testimony whereof I have signed my name to this specification.

MALCOLM L. oossrrfr platen from and to a tune-100

